Toothbrush



FIG. 1 is a right front perspective view of a toothbrush according to the new design;

FIG. 2 is a left front perspective view thereof;

FIG. 3 is a right rear perspective view thereof;

FIG. 4 is a left rear perspective view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a right side view thereof;

FIG. 8 is a left side view thereof;

FIG. 9 is top view thereof;

FIG. 10 is a bottom view thereof;

FIG. 11 is an enlarged front view of the head thereof; and,

FIG. 12 is an enlarged rear view of the head thereof.

All broken lines shown in the drawings are for environmental purposes only and form no part of the claimed design.

The head is shown separately in FIGS. 11 and 12 for clarity of illustration. 

The ornamental design for a toothbrush, as shown and described. 